Table of Contents

Name

ppmrelief - run a Laplacian relief filter on a portable pixmap

Synopsis

ppmrelief [ppmfile]

Description

Reads a portable pixmap as input. Does a Laplacian relief filter, and writes a portable pixmap as output.

The Laplacian relief filter is described in "Beyond Photography" by Holzmann, equation 3.19. It's a sort of edge-detection.

See Also

pgmbentley(1) , pgmoil(1) , ppm(5)

Author

Copyright (C) 1990 by Wilson Bent (whb@hoh-2.att.com)


Table of Contents